Dyno results....

[B767DRIVER]

I had my car dynoed today...

Max power = 455
Max torque = 474

AF was around 11:1 for most of the run....

Is this about average for the upgrades?

06 FE Coupe
Corsa Track w/RT Hi flow cats
K & N Kit

 

[mike & juli]

Our results were similar to yours with our '05, except we dug out a little more torque, and then added headers--now 481rwhp, 518tq...w/VECII for tuning. (also have the corsa exhaust and flow-thru cats--AWEsome sound--love it!). ~juli~
What did you stock dyno at? 425rwhp here.

 

[MikeR]

Every dyno is different. Whats important is to use the same dyno place when you do your next mods,so that things stay accurate.
For reference though, I dyno'd 466rwhp with just Corsa and RT cats.

 

[Joseph Dell]

on a dynojet at our GA dyno day 2 weeks ago, a stock (300 mile) 06 SRTC pulled 452/490. It was quite stout. Owner just installed belanger headers + a cat back but hasn't re-dynod yet. TBD...

JD

 

[B767DRIVER]

Unfortunately, I did not dyno stock to get a base line.

 

[MikeR]

Again dynos read differently, but there are some freak cars too. Ive heard of SRT's dyno 420rwhp stock up to 450rwhp. I think some are just built better,some may have something to do with type of dyno. As long as from mod to mod you see increases, I would never worry too much.

 

[Viper X]

Numbers are a bit low, but as stated above, numbers vary a bunch on different dynos, in different weather, etc.

11.1 air / fuel ratio is rich.

 

[mike & juli]

Again dynos read differently, but there are some freak cars too. Ive heard of SRT's dyno 420rwhp stock up to 450rwhp. I think some are just built better,some may have something to do with type of dyno. As long as from mod to mod you see increases, I would never worry too much.

Hi MikeR--We've corresponded before, as you and I have similar results also with our mods and dyno results. You are correct, each dyno is very different (a chassis dyno is best)...and we've seen and heard same thing as you---stock dyno results varying from car to car, even if same year/model/stock...remember these Vipers are hand-made, not mass-produced like the Vettes, so each one would be a bit different...the beauty of it all!
~juli~

 

[Ooomph]

Again dynos read differently, but there are some freak cars too. Ive heard of SRT's dyno 420rwhp stock up to 450rwhp. I think some are just built better,some may have something to do with type of dyno. As long as from mod to mod you see increases, I would never worry too much.

agree. bonestock my '03 dyno'ed 449.4rwhp/489.0rwtq. haven't dyno'd it yet with the K&N, belangers and dc computer tune.

 

[Viper X]

My 04 dynoed 450 / 490 bone stock at 2000 feet elevation on an 80 degree day. They do vary - so do dyno's.

 

[Flyntgr]

Air/Fuel ratio should be set to run about 13 to 1 on the street per Sean Roe. Tuners use 12.6 to 12.8 for race versions. Stock SRT Viper ECM's are usually on the lean side at mid-ranges, but about right at higher rpm's.

 

[05Viper]

My 05 Dyno'd 456.9 max power / 467.6 max torque, mopar race computer,cam and exhaust. 11.5 was the Air/Fuel. Can the race computer be tuned better? Who can do it?

 

[mike & juli]

My 05 Dyno'd 456.9 max power / 467.6 max torque, mopar race computer,cam and exhaust. 11.5 was the Air/Fuel. Can the race computer be tuned better? Who can do it?

I do know that Roe Racing accepts dyno results and can help you tune your Viper if you have the VECII, VECIII computer? We've emailed Sean Roe our dyno results and he's helped with determining the a/f ratio. Give him a call or email at roeracing.com, ask for Sean specifically. Just my .02, as that's what we did...he's a great help on this stuff.
BTW: We dyno'ed at 481rwhp, 518tq and Sean determined that 12.5 was the correct a/f number. (with Corsa Exhaust/B&B stepped headers-ceramic coated, flow-thru cats, VECII)
~juli~

 

[Flyntgr]

My car dynoed 481/506 without a custom card, which I now have. I'll have it dynoed asap, but it will at least be next week before I know the new, hopefully better numbers.

 

[viperbilliam]

I dynoed stock 425 hp and 480 tq with less than 5K miles. I don't know what it is now but I'll wait until I get the mods done.

 

[Bandit3]

Dyno results of an 06. Pure stock=451.7 HP and 492.4 TQ. I added bellanger headers, no cats and three inch pipesnow-472.4 HP and 508.6 TQ. This is with no tuning yet, might be running lean. I'll post after the tune session. John

 

[2002_Viper_GTS_ACR]

lean = more power, but risk of knock... fyi. So if you think thats true, its probably going to go down.

Rich = less power... less change of knock... "safer"